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Garmin GPSMAP 551, GPSMAP 551s Accessories

Garmin accessories for the Garmin GPSMAP 551 and Garmin GPSMAP 551s marine chartplotters. All of the Garmin GPSMAP 551/551s accessories available to purchase from ActiveGPS are genuine Garmin parts.

We only sell genuine stock and do not sell third party parts and accessories. You can telephone 01733 777623 (Mon-Fri 9:30am-5pm) to make your purchase or click the images or accessory descriptions below to make your purchase online via the ActiveGPS website.

Garmin transducers and BlueChart g3 marine charts are also available for use with the Garmin GPSMAP 551s. For further information please click here or scroll down this page past the Garmin GPSMAP 551/551s accessories below.

Garmin GPSMAP 551/551s Swivel Mounting Bracket


‣Use the swivel mounting bracket to mount, swivel and tilt your 5-inch Garmin GPSMAP 551 or Garmin GPSMAP 551s marine chartplotter to get the best viewing angle.

Garmin GPSMAP 551/551s Swivel Mounting Bracket


‣Add a second mounting station for your Garmin GPSMAP 551 or Garmin GPSMAP 551s chartplotter on your boat with this second mounting station.

Garmin GPSMAP 551 Power/data Cable


‣Power or connect your Garmin GPSMAP 551 to a network with this power/data cable. IMPORTANT: This cable is for GPSMAP 551 models WITHOUT a sounder.

Garmin GPSMAP 551s Power/Data/Xdcr Cable


‣Power or connect your Garmin GPSMAP 551s to a network with this power/data/xdcr cable IMPORTANT: This cable is for GPSMAP 551s models WITH a sounder.

Garmin GPSMAP 551s 8-pin to 6-pin Sounder Cable


‣Connect your Garmin GPSMAP 551s chartplotter with a 6-pin connection to a single or dual beam transducer with an 8-pin connection.

Garmin GPSMAP 551/551s NMEA 2000 Starter Kit


‣Garmin NMEA 2000 starter kit has everything you need to enable you to build a basic NMEA 2000 network on your boat.

Garmin GPSMAP 551/551s GA 38 GPS/GLONASS Antenna


‣If you are wanting to use your Garmin GPSMAP 551/551s on a boat, you will need this remote marine GA 38 GPS/GLONASS antenna to receive GPS/GLONASS signal.

Garmin GPSMAP 551/551s BlueChart g3 UK and Ireland Update Card


‣Update your Garmin GPSMAP 551 or GPSMAP 551s preloaded UK and Ireland BlueCharts with this update card.


We offer UK, Europe and Worldwide deliveries. We despatch orders at 4:30pm on Monday, Tuesday, Wednesday, Thursday and Friday. We need to receive your order on those days by 3:00pm. When possible we may despatch orders received after that time. No orders are despatched on Saturday, Sunday or Bank Holidays in England and Wales.

We offer FREE UK delivery on all orders of £50.00 or more, plus next working day and guaranteed Saturday delivery options. Click here for further info. All options also appear at the basket pages.

Adding a Transducer to your Garmin GPSMAP 551s

Garmin transducers are fully compatible with the Garmin GPSMAP 551s and will provide you with a live 'view' beneath your boat. We stock the very latest Garmin transducers which can provide you with an image of not only what lies directly below but towards the front or sides of your boat with features such as SideVu, DownVu and RealVu 3D Forward.

To learn more about Garmin transducers please see our Garmin Transducer Buyer's Guide, the page also features an online form, which after completing we will email you a link to compatible transducers that are all fully compatible with your Garmin GPSMAP 551s and the boat in which you will use both nautical devices on.

Pictured below, transom mounted transducer, thru-hull transducer and in-hull transducer.

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Adding a Garmin BlueChart to your Garmin GPSMAP 551/551s

By adding either a Garmin BlueChart g3 or g3 Vision marine chart on SD/microSD Card to your Garmin GPSMAP 551 and Garmin GPSMAP 551s chartplotter will provide the detailed digital marine charts on the screen of your device.

Garmin BlueChart g3 Vision marine charts are available in three different sizes, these are: Small, Regular and Large coverage. The larger the chart coverage the more area is covered without the need to change or buy additional charts. We suggest buying the chart(s) that provide the coverage for your sailing, fishing or yachting needs.

Charts are available to buy from ActiveGPS for the waters around the UK, Western Europe, Mediterranean and North American coasts. Find your Garmin BlueChart.

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Why buy from us?

We are official Authorised Internet Retailers for Garmin. We sell genuine Garmin products, accessories and maps. We purchase from assigned Garmin UK distributors. We do not buy on the grey market and we do not sell counterfeit products. You can rest assured that by purchasing from ActiveGPS you will receive the full support of Garmin.

This page was last updated on: 19th June 2024

Telephone Number:

01733 777623

Monday to Friday 9:30am to 5:00pm (UK Time)

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